Tank.



. C. W. PARKER.

TANK.

APPLICATION FILED MAY 5, 1917.

PatentedNov. 20, 1917.

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-li Hi @une ntoz Ufo: n c la C. W. PARKER.

TANK.

APPLIcMlou msn my 5. 1911.

Patented Nov. 20, 1917.

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CLARK W. PARKER, OF IDETROIT,A MICHIGAN, ASSIGNOR TO PARKER RUST-PROOF COM- PANY OF AMERICA, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

TANK.

Specification of Letters Patent.

Patented Nov. 20, 1917.

Application led May 5, 1917. Serial No. 166,675.

T0 all whom t may concern.'

Be it known that I, CLARK W. PARKER, a citizen of the United States, and residing at Detroit, in the county of Wayne andState of Michigan, have invented a new and Improved Tank, of which -the following is a specification.

This invention relates to tanks in which a constant transverse circulation of all the liquid therein is of importance, and its object is to provide a tank of this character wherein substantially all sediment will be left undisturbed below a false bottom.

This invention consists in a tank having',

a false bottom, a series of heating pipes positioned in a vertical stack adjacent one side of the tank, and a wall of separated horizontal plates between the stack of heating pipes and the body of the tank. It further consists in bending the lower edges of these horizontal plates toward the pipes in order to formfdelectors to cause the heated liquid to circulate freely transversely of thetank. It also consists in an auxiliary-bottom for the tank and spaced from the sides thereof below which sediment may accumulate.

In the accompan ing drawings, Figure l is a perspective oa section of this tank. Fig. 2 is a vertical longitudinal section thereof. Fig. 3 is a vertical transverse sec. tion of the tank. Fig. 4 is a detail of the deflecting plates.

Similar reference characters refer to like parts throughout the several views.

The shape and size of the tank and the proportions and details of its parts will depend largely upon the character" and amount of the work to be performed.y The tank shown in the drawings is particularly adapted for rust-proofing articles of iron and steel according to the process set forth in the patent to Richards, No.`1,069,903, dated lAugust 12th, 1913. IIn carryin out this process, impurities in the form o iron scale and particles of man anese dioxid often settle on the articles bemg treated, resulting in s ecks or spots of untreated'or unaiected sur ace, which areas rust as freely if not more freely than the surfaces of articles which have not been treated at all. By causing a free circulation of h otrust-proofing liquid transversely of the tank while providing for the separation therefrom of the impurities, the time required for the rust-prooling treatment is reduced and the specks or spots of unaffected surface are eliminated.

The tank employed is preferably steel and rectangular, or at least provided with a vertical side 1, an opposite side 2, ends 3 and 4 and a bottom 5 beingl of any desired contour. As the' liquid contents .of the tank are to be hot, a lagging 6 of wood or other poor heat conductor and a sheathing 7 of sheet metal, as shown in Fig. 1, may be employed. Reinforcing angles 8 may be secured along the outside of the upper edges of the tank and other angles 9 and 10 may be secured to the inner -sides of the tank to act as supports for the cross bars from which are supported the articles to be treated.

A series of steam pipes 12"are mounted adjacent the side 1, water-tight joints bein secured by means of the usual nuts 13. series of upright bars 14 may have outwardly bent upper ends connected to the angle bar 10 and may have short angles 15 to space their lower ends from the side 1 of the tank. The false bottom 16 and its supporting bars 17 may be connected to these bars .14 by means of hinges 18. vAny other .arrangement whichpermits the bottom 16 to be moved out of the way may be adopted.

Secured to the bars 14 is an apertured partition, preferably in the form of a series of longitudinal plates 19, having their lower edges 20 bentl outwardly towardv the pipes 12 in order` to constitute deflectorsj which will project into the ascending heate'dcur#V rent of water between' the wall 1 and plates 19 and direct portions of this'current across the tank. These deflectors are therefore at the upper edges of the apertures in the partition. The pipes may be secured to the barsl 23 by means of the straps 22 and the bars 23 may have inwardly extending upper ends that are secured tothe angle bar 10.`

The' arrows in Fig. 3 indicate the transverse currents of the liquid contents -of the tank when steam is turned `into the pipes 12.

the treatment to a minimum. lit also washes away all sediment that may fall on any surtace and carries this sediment to the bottom of the tank where the most of it will pass down to the space below the false bottom 16 through the opening between it and the 'wall 2 of the tank. As the current below the bottom 16 is very slow, the heavy sediment carried into this space will lie there undisturbed until the tank is drained, the false bottom swung up and this sediment removed. Because of the transverse currents in the liquid contents of the tank, the temperature of this liquid will be quite uniform throughout the space between the partition and the side 2.

ll claim l. T he combination with a tank, of fa series oi' heating pipes mounted above each other adjacent one side of the tank, a series of spaced longitudinal plates mounted parallel to said pipes to constitute an upright partition, and an auxiliary bottom mounted a distance above the bottom of the tank and of less width than the bottom of the tank.

52. rlhe combination of a tank having a vertical side, a series of heating pipes mounted parallel to said vertical side, an apertured partition parallel to said side on the opposite side ot said pipes, and aY removable auX- iliary bottom so mounted in the tank as to leave a chamber beneath it.

8. The combination of a tank, a series of heating pipes mounted adjacent one of the sides ot the tank and an apertured Partition onthe opposite side of the pipes, said partition having a series of inclined deflectors I inclining downwardly from the upper edges of the apertures toward said pipes.

4. rllhe combination 'with a tank having retracer l a vertical side and a horizontal bottom, a

, ing parallel to said pipes, a partition having longitudinal openings secured tosaid4 upright members, and an auxiliary floor hinged to said upright members.

5. T he combination with a tank having a vertical side and a horizontal bottom, a vertical series of heating pipes mounted parallel to said side, upright members extending parallel to said pipes, a partition having longitudinal openings secured to said upright members, and an auxiliary floor hinged to said upright members, the edge ot' the auX- iliary l'loor opposite said hinges being spaced apart from the opposite side of the tank.

6. 'llhe combination with a tank having a vertical Wall, a vertical series `of heating pipes mounted parallel to said wall, and a parti- Jtion formed of horizontal plates on edge and spaced apart, said partitionl being on the opposite side of said pipes trom said wall, the lower edges of said plates being bent toward Said pipes.

7. rThe combination with a tank having a vertical wall, a vertical series of heating pipes mounted parallel to said wall, and a partition formedD of horizontal plates on edge and spaced apart, said partition being on the opposite side ofsaid pipes from said wall, the lower edges of said plates being bent toward said pipes, and a removable floor spaced apart from the bottom ot the tank and below the lowermost of the plates,

the edges of the fioor adjacent the pipes and opposite thereto being spaced trom the sides of the tank.

CLARK W. PARKER. 

